Treat Your Logs First to Make Them Last

PeneTreat®

Rot and beetles and termites – oh my! PeneTreat® is the inexpensive insurance every log and wood homeowner needs. When sprayed or brushed on bare wood, this borate-based log home preservative forms a protective shell to defend against rot and wood-ingesting insects. It’s easy to use and EPA-registered. PeneTreat will not affect the color of wood and is chemically compatible with all of Sashco’s stain, caulking and chinking products. It costs five times less than its glycol-based counterparts, yet does not sacrifice protection.

PeneTreat® is the inexpensive rot and insect infestation insurance for use on:

Exterior log and wood surfaces

Interior log and wood surfaces (optional)

Do not use:

On wood coated with any stain, paint or finish. PeneTreat will work only when applied to bare wood.

Penetreat can be applied to wood surfaces, whether green or dry, that are bare. Penetreat will form a protective "shell" on the outer layer of the woodto a depth of about 1/2". Keep in mind that, in order for Penetreat to maintain its potency, it must be covered with a good quality stain.

With our water based products, only if you can ensure a surface temp between 40 degrees F and 90 degrees F. This usually means you have to tent the walls and heat them. Lexel and Through the ROOF! can be applied down to 0 degrees F.

No. Mildew is a type of fungi that exists on the surface of wood and does not actually attack or eat wood (although it can cause some discoloration of the wood surface). Penetreat's great strength is its ability to control wood-destroying fungi that actually cause rot. Of course, Penetreat also helps to control many insects, which are killed when they ingest the treated wood. If you want to control mildew, you should use an additional mildewcide in your stain and clear coat. Sashco recommends Stay Clean I/E, available through Sashco distributors.

No. Penetreat is disodium octaborate tetrahydrate. This chemical is very effective at stopping the fungus that causes rot. Also, Penetreat kills most wood boring insects. However, the product is fairly benign to humans and pets. Some skin or eye irritation can occur upon contact

These crystals sometimes appear after the application of Penetreat, especially on newly constructed denser species of wood that don't allow as much penetration of the Penetreat. There is nothing to worry about

Chemically, there is no difference. Both products are disodium octaborate tetrahydrate. Each product is EPA registered for different applications: Timbor for dip, spray, and pressure treating in a manufacturing facility, and PeneTreat for remedial applications (spray application to existing structures.)

Even in dry climates fungi and insects can attack wood. Roof runoff and ground splash-back can frequently deliver large volumes of water to isolated regions of wood that, without a fungicide, can succumb to rot. And, of course, wood-boring insects are in all climates, and a defense against them is highly important. Penetreat will provide the defense you need against almost all of these insects.

As with all borate products, the answer is no. In order for PeneTreat to perform its intended function, it has to penetrate into bare, clean wood. If a coating exists on the wood surface, it acts as a barrier to the PeneTreat/water solution, prohibiting penetration and retention.